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SF6 as a selective and reactive fluorinating agent for low-valent transition metal complexes

机译：SF6作为低价过渡金属络合物的选择性和活性氟化剂

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SF6 has been found to react readily with vanadocene, yielding V(C5H5)(2)F, while reactions with decamethylchromocene can lead to a number of products, depending on conditions. Among the products can be included Cr(C5Me5)F-2(dmap) (dmap = p-dimethylaminopyridine), Cr(C5Me5)(2)(+)[Cr-2(C5Me5)(2)F-5](-), and Cr-8(C5Me5)(6)F-18. Each of these reactions is likely to occur via the equivalent of an inner-sphere electron-transfer process. An even more rapid reaction was observed with the 19-electron Fe(C5H5)[1,3,5-C6H3(t-C4H9)(3)] complex, leading to various salts of the expected 18-electron cation. In these cases, the reactions are likely to be analogous to an outer-sphere electron transfer, presumably leading initially to a "naked" fluoride ion. Structural characterization of each of these species has been obtained through X-ray diffraction studies.
机译：已发现SF6可以轻易地与钒氧杂环丁烯反应，生成V（C5H5）（2）F，而与十甲基铬茂金属的反应则可产生许多产物，具体取决于条件。在这些产品中可以包括Cr（C5Me5）F-2（dmap）（dmap =对二甲基氨基吡啶），Cr（C5Me5）（2）（+）[Cr-2（C5Me5）（2）F-5]（- ）和Cr-8（C5Me5）（6）F-18。这些反应中的每一个都可能通过等效的内球电子传输过程发生。观察到与19电子Fe（C5H5）[1,3,5-C6H3（t-C4H9）（3）]络合物的反应甚至更快，生成了预期的18电子阳离子的各种盐。在这些情况下，反应很可能类似于外层电子转移，可能最初导致“裸”氟离子。通过X射线衍射研究已经获得了每个物种的结构特征。

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